Bullet time is the heart of Max Payne's combat maneuvers. By pressing , you can activate Bullet Time, which will slow the action around Max while allowing you to aim his weapon in real-time. This is very effective for killing multiple enemies or even allowing you to dodge oncoming bullets. You can use Bullet Time as much as you want, but it's a limited resource due to it draining overtime. This is indicated by the hourglass in the lower left of the screen, however, using the Unlimited Bullet Time cheat code prevent Bullet Time from draining overtime.